Head-rounding machine



oL'sEN ET AL. HEAD RouNomG MAcHxNE.

FILED MAR. 15, 1921 Mymnrf H12-Nm 0.0mm

Patented den.. 9, i923.

PARENT HENRIKl LAIOLSEN AND OSKAR NILSEN, y01E' TRONDHJ NORWAY.

HEAD-nonnnine MACHINE.

Applicationledltaroh 15, 1921. Serial No. A252,597.

To all 't0/wm t may concern.'

Be it known that HENRIK @LAI ULSEN,

. residing at Gunneriusgate 6, and ll, @sima NILsnN, residing at Slrolegaten 5, both of 5 Trondhjem, inthe Kingdom oi' Norway,`

nism whereby the cutters in a machine for turning barrel heads may be automatically fed forward into a determined position, whereupon the cutter is automatically returned to the initial position.

A type of machine is shown in Swedish Patent No. .38,84%2 or United States Patent No. 416,717 to Spaulding, granted May 7, 1865, in which the present mechanism may be substituted for the means shown for advancing` the knives.

@ne modilication of the invention is shown on the accompanying drawing. Fig. 1 shows the mechanism from above, and TEig. 2 shows a section rthrough the feeding mechanism.

Vioton is transmitted 'from the driving` shaft for thebarrel head, for :iample by a cable drive, vto a shaft which has two screw threads (Y) ande), which are in en gagement with worm wheels ande). To each ot theseis fastened a 'plate (f and g) provided with a number of. lpins (h and 7:), four for example, on `each plate. These pins project into a .cavity in the slides (0 and g2), and when thewormwheels rotate, will come into positionagainst the projections (m and n) on the slides. To these slides are tasf tened cutter holders and y) by means of 'bolts in such` a manner kthat they can be yadjusted 0n the same.

Two springs (r and constantly tend to press the slides apart andtocause the pron jections to rest against the pins.

Whenthe projections (m @d n) .me n, either side, the pins on both dlgcslwlll tendk toforce the slides (o and toward veach other, when the wormwheels (CZ/and c) rotate in the same direction, but the projec` tions may also be disposed symmetrically, if the screwl threadsare maderightl and lett. .4

jlVhen the pins, during the rotation of the wormwheels, have come past the edge of the projections, the springs will limmediately force the slide back and causethe projection to bear lagainst a newy pin, whereupon the f cutter holders are moved tow ds each other anewi f Claims: i

machines for turningbarrel, vat,` and the like heads, lcharacterized by the iact that the cutters are placed in holders on two slides which are `automatically and Lgjfi'adualiy moved towards each other to a determined position and thereupon moved quickly away from each other, the transmission of motion occurringhyaid'ot rotatable discs with pins or studs which come into position! against projections or abutmentson the slides carryingM the tools and move them toward each other the desired distance and then escape theabutments and permit a quick separation et the slides. U

2. ln a machine of the typeset orthin claimf'l, the disposition of the mechanism for advancing` the slides carrying ythe tools, which is k'accomplished by k.pins or studs on two discs fastened each to a worm wheel,y which receives its motion from screw threads on afcommonshaiit driven from the rotating' shaft for the barrel head,`but the returnl or `the slides carrying the tools being accom- 1. Setting mechanism orthe cutters of i' plished"by aid ot quick action tension devices. Y

.ln testimony that we ciaim the foregoing as our "inventioin'we have signed om' names in presence of two subscribing' witnesses'.

' HENRK @LAX OLSEN. f

OSKAR NILSEN.' lWitnesses M. SAZFLAAQ R. A. AGAARD. 

